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[hev-ee-weyt] /ˈhɛv iˌweɪt/
of more than average weight or thickness:
a coat of heavyweight material.
noting or pertaining to a boxer, wrestler, etc., of the heaviest competitive class, especially a professional boxer weighing more than 175 pounds (79.4 kg).
of or relating to the weight class or division of such boxers:
a heavyweight bout.
(of a riding horse, especially a hunter) able to carry up to 205 pounds (93 kg).
designating a person, company, nation, or other entity that is extremely powerful, influential, or important:
a team of heavyweight lawyers.
a person of more than average weight.
a heavyweight boxer or wrestler.
a person, company, nation, or other entity that is powerful and influential:
a price hike initiated by the heavyweights in the industry.
Origin of heavyweight
1850-55; heavy + weight Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for heavyweight
Contemporary Examples
Historical Examples
  • "It would be real mean if they didn't," volunteered the heavyweight lady of the committee.

    A Pirate of Parts Richard Neville
  • Is this the lady that's entered for the heavyweight Juliet championship?

    Torchy Sewell Ford
  • Maybe you remember about Mr. Robert's heavyweight young sister that wanted to play Juliet once?

    Torchy Sewell Ford
  • Better put two more on you, Buster, because youre a heavyweight, you know.

  • He ain't no heavyweight for brains as you can see, an' years ago he married a wife feather-headed as himself.

    Flood Tide Sara Ware Bassett
British Dictionary definitions for heavyweight


a person or thing that is heavier than average
  1. a professional boxer weighing more than 175 pounds (79 kg)
  2. an amateur boxer weighing more than 81 kg (179 pounds)
  3. (as modifier): the world heavyweight championship
a wrestler in a similar weight category (usually over 214 pounds (97 kg))
(informal) an important or highly influential person
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for heavyweight

noun and adj., 1857 of horses; 1877 of fighters; from heavy + weight. Figuratively, of importance, from 1928.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for heavyweight



An important person; biggie: He's some sort of heavyweight in the rag trade (1890+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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heavyweight in Technology

High-overhead; baroque; code-intensive; featureful, but costly. Especially used of communication protocols, language designs, and any sort of implementation in which maximum generality and/or ease of implementation has been pushed at the expense of mundane considerations such as speed, memory use and startup time. Emacs is a heavyweight editor; X is an *extremely* heavyweight window system. This term isn't pejorative, but one hacker's heavyweight is another's elephantine and a third's monstrosity.
Opposite: "lightweight". Usage: now borders on technical especially in the compound "heavyweight process".

The Free On-line Dictionary of Computing, © Denis Howe 2010
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